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Surveying the Ecological Effects of Fire on Alaska's Yukon-Kuskokwim Delta

Map of Cover according to Plant Functional Types

Vegetation point-intercept (VPI) any-hit cover metric data were combined with Landsat imagery to develop fractional maps of any-hit cover for four aggregated plant functional types (PFTs); shrubs bryophytes, lichen, and herbs for the upland tundra area of the Y-K Delta, Alaska. VPI data were collected from plots in areas burned in 1971, 1985, 2005, and 2015.

Ecological field data and maps of vegetation cover spanning gradients of fire history in upland tundra are available from the Arctic-Boreal Vulnerability Experiment (ABoVE).

Boreal Forest Biomass and Soil Metrics at Burned Sites

Map of burned areas across portions of North America.

Field sites, ecoregions, and total area burned (millions of hectares; Mha) in each of the ecoregions in the study domain over time. Grey dotted line in the inset represents the simple linear regression, with red shading for the 95% confidence intervals, of burned area for all ecoregions combined. Analyses were completed using the field site groupings, located within the six ecoregions defined by the EPA Level II Ecoregions of North America.

Burned forest plot data is available from the Arctic-Boreal Vulnerability Experiment (ABoVE).

Boreal Forest Burned and Unburned Site Comparisons

Image of a burned field site.

A typical burned plot in the Saskatchewan, Canada, boreal forest study area.

Fire history and field measurements were used to estimate above- and belowground carbon values.

Burn Severity Index of Canadian Ecoregions

Map of study area.

Study area included sites burned in 2014 and 2015 in the southeastern portion of the Northwest Territories and northern Alberta of Canada. The study area includes all 2014 and 2015 fires within a radius of approximately 300 km from Great Slave Lake.

Pre- and post-fire Landsat images were used to classify burn severity of soil organic matter across portions of arctic Canada.

Alaskan Fire Fuel Components

Four maps showing fractional cover distribution.

Examples of fractional cover distribution in a tundra region near Lake Narvakrak in the Noatak River National Preserve: (a) very high-resolution imagery from Google Earth; (b) fractional cover of woody component; (b) fractional cover of herbaceous component; (d) fractional cover of nonvascular component.

Maps of three major wildland fire fuel types are available from the Arctic-Boreal Vulnerability Experiment.

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